Patent GB-112563-A (GB)
Title: Eyeleting Machine.
Inventor: FAIRWEATHER WALLACE
IPC: A43D100/02
Filed: 1917-04-19
Abstract: 112,563. Fairweather, W., (Singer Manufacturing Co.). April 19, 1917. Setting cyelets.-In a duplex or quadruplex eyeleting-machine of the kind in which the work is automatically fed as the eyeleting proceeds, the eyeleting is performed by telescopic punches and sets operating on one side of the work only. A horn or support for the work is provided, by means of which the two curved sides of a shoe quarter may be eyeleted at the same time when placed thereon with their edges toward each other. The eyeletsetting tools comprise an adjustable set 51 secured by a lock-nut 52, and a punch 53 normally held in projected position by springs 54 secured to a collar 55 interlocked between nuts 56, 57. Two of such eyeleting tools 30, 31 are mounted in the head 29 of an arm 22 and a second pair 35, 36 is mounted in a slide block 33 engaging a lateral projection 32 on the arm and adjustable thereon by a screw 37 having a knurled head 38. The arm 22 is pivotally mounted at 21 on a slide 20 movable in a slide-way 19, and carries at its end a roller 23 having engagement with an extended cam 24 mounted on a driving-shaft 25. Also mounted on the shaft 24 is a peripheral cam 43 against which bears a roller 42 mounted on an arm 40 pivoted at 41 and carrying a striker 39 which engages the adjusting-screw 37 and traverses the arm 22 and slide 20. In order to regulate the traverse in accordance with the distance between the two pairs of eyeleting-tools, the screw 37 has two threads 37<a>, 37<b> of different pitch, the ratio of the coarser pitch 37a to the finer pitch 37<b> being as 1¢ to 1 so that the spacing of the tools is increased by the same amount as the withdrawal of the screw 37 from the arm 22 lengthens the operating stroke. The arms 22, 40 are controlled by springs 66, 44 and the slide 20 by a spring 47. In order to operate the punches 53, there is provided a spring-controlled arm 58 pivoted to a fixed standard 61 and having a head 59 which is pressed down to hold the punches in projected position by the engagement of the rear end of the arm 58 by a cam 63, the puncher being released when the lateral cam 43 comes into action to traverse the arm 22. The work-supporting horn 3 with which the eyeleting tools co-operate is curved as shown at 4 so as to allow two curved pieces of material to lie thereon with their edges parallel. Plates 5, 6 having clinching surfaces 7, 8 are slidably mounted on the horn 3 and are provided with lugs 9, 10 at their ends having journal pins connected with links 11, 12 pivoted to pins 13, 14 which are connected to the adjustable punch mountings. A spring presser-foot 16 having slots 17 therein is provided to keep the work in position. The end of the horn is fitted with a thin plate 18, extending over the plates 5, 6 and apertured as at 18a, Fig. 2, to uncover the clinching surfaces 7, 8, which supports the material so that it will not be moved by frictional contact alone with the traversing plates 5, 6. Material is fed into the apparatus between flared lips 69, 70 and is alined against a rib 68. The curvature of the horn surface must be varied in accordance with the curvature of the edges of the work to be eyeleted.